449209 has 2 divisors, whose sum is σ = 449210. Its totient is φ = 449208.

The previous prime is 449203. The next prime is 449227. The reversal of 449209 is 902944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 291600 + 157609 = 540^2 + 397^2 .

It is a cyclic number.

It is not a de Polignac number, because 449209 - 2³ = 449201 is a prime.

It is not a weakly prime, because it can be changed into another prime (449201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224604 + 224605.

It is an arithmetic number, because the mean of its divisors is an integer number (224605).

2⁴⁴⁹²⁰⁹ is an apocalyptic number.

It is an amenable number.

449209 is a deficient number, since it is larger than the sum of its proper divisors (1).

449209 is an equidigital number, since it uses as much as digits as its factorization.

449209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 449209 is about 670.2305573458. The cubic root of 449209 is about 76.5860168492.

The spelling of 449209 in words is "four hundred forty-nine thousand, two hundred nine".